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Sci-fi

Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant planets. 

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sci-fi

New & popular$15 or less with Steam keys tagged Sci-fi (160 results)

Explore games with Steam keys tagged Sci-fi on itch.io. Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant plan · Sell your games with Steam keys on itch.io to have them show up here.

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A short first-person horror experience about picking up strange signals after dark on your brand new television set.
Colonize and explore the Trappist-1 solar system in this story-driven colony builder
Simulation
Real-time tactics meets cosmic horror - remotely command a squad of outcasts as they delve the husks of derelict ships.
Action
Turn-based horror strategy - play as the engineer of a train built to withstand a deadly fog that turns nightmares real.
Survival
Reroute
$3.99
A challenging puzzle game with lasers and portals.
Puzzle
Tau Cubis is a Mazing Tower Defense game in colorful Scifi Landscapes. Repel the onslaught of crazy robots !
Strategy
THE DATE: January 12, 2081. THE LOCATION: Otto Labs headquarters. THE OBJECTIVE: Find out what the heck is going on!
Shooter
Roguelike mecha RPG set in a world recovering from the apocalypse.
Role Playing
Action platformer with roguelike elements
Action
Extrasolar musical explorer
Simulation
Play in browser
Hard sci-fi, top-down space simulator, with every aspect backed up by real physics and science.
Simulation
A sci-fi themed puzzle game with RTS elements.
Strategy
Only the true heroes of space can become champions of Space Wave Race!
Racing
Execute intense space battle operations from side, and top view.
Shooter
Inventory Management FPS
Shooter
Alien spaceship simulator
Puzzle
Hovercars 3077: Undeground® is a high-octane racing game in which armed cars.
Racing
A minimalist city builder where only profits matter.
Strategy
A rootin' tootin' gun-slingin' good time
Action
A hex tile game with RTS and TD mechanics - WIP
Strategy
Choose your spaceship and defeat the alien threat that comes from the Moon.
Shooter
A modern-classic 2D Platformer
Platformer
Jet-combat roguelite, occasionally with swords and 300+ other items to strap onto your jet.
Action
Beat a lot of Stickmans with a lot of stuff, and beyond!
Simulation
Neutral. Shield. Danger.
Shooter
CTHON
$4.99
Battle the legions of the damned in the depths of space - and beyond.
Shooter
A slapstick rampage. Outsmart everything that wants you dead with your grabby robot arm. Improvise and CREATE!
Platformer
Science fantasy action roguelike top-down shooter
Action
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